1 low-voltage / high q si hyperabrupt varactors rev. v5 ma4st200 series ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. features ? surface mount packages (sot-23, sc70 3ld, sod-323) ? high q at low voltages ? high capacitance ratio at low voltages ? spc process for superior c-v repeatability ? available as single and common cathode pairs tape and reel packaging ? designed for commercial wireless applications ? lead-free (rohs compliant) equivalents avail- able with 260c reflow compatibility description m/a-com?s ma4st200 series is a ion-implanted, hyperabrupt junction, silicon tuning varactors in sot-23, sc70 3ld, and sod- 323 surface mount packages. this series of varactors is designed for high q and low voltage operation. each varactor type has a q greater than 400 at -2 v. these diodes are offered with standard sn/pb plating , as well as 100% matte sn plating on our rohs compliant equivalent devices. applications the ma4st200 series tuning varactors are useful for wide band tuning and low phase noise applica- tions where the supply voltage is limited to 5 volts or less. these varactors have been specifically de- signed for use in the wireless communications up to the 2.4 ghz band. applications include vcos and voltage tuned filters. absolute maximum ratings 1,2 @ t a =+25 c (unless otherwise noted) 1. operation of this device abov e any one of these parameters may cause permanent damage. 2. please refer to applicati on note m538 for surface mounting instructions parameter absolute maximum reverse voltage 12 v forward current 50 ma operating temperature -55 c to +125 c storage temperature -55 c to +125 c total power dissipation 250 mw part number rohs compliant base part number ma4st230 mavr-000230 ma4st240 mavr-000240 ma4st250 mavr-000250 0.25 0.5 0.75 1.0 2.0 3.0 350 frequency (ghz) j ct nmt amps tacs nmt is-136/95 gsm pdc ct2 active pagers dect php dcs1800 wlan gps pcs smr 340 330 320 typical device selection by frequency configurations rohs compliant parts specifications are subject to change without prior notification
2 low-voltage / high q si hyperabrupt varactors rev. v5 ma4st200 series ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. electrical specifications @ t a = +25 c breakdown voltage @ i r = 10 a, v b = 12 v minimum reverse leakage current @ v r =10v, i r = 100 na maximum 3. the suffix defines package style, confi guration and packaging information. contact representative for complete part identifi cation. example : the ma4st250-1141t rohs comp liant version is mavr-000250-11410t . 4. capacitance @ 1 mhz part no. rohs compliant base part no. cj0 (pf) vj (v) m ma4st230 mavr-000230 12.0 4.085 2.228 ma4st240 mavr-000240 8.16 4.930 2.520 ma4st250 mavr-000250 6.19 4.774 2.458 part number base rohs compliant part number base 3 capacitance ratio q factor (pf) (pf) f = 1 mhz, v r = 2.0 v f = 1 mhz v r = 4.0 v c t0.5 /c t4.0 f = 50 mhz v r = 2.0 v min. nom. max. max. typ. min. ma4st230 mavr-000230-xxxxxx 4.5 5.0 6.0 3.1 3.5 400 ma4st240 mavr-000240-xxxxxx 3.0 3.5 4.2 2.3 3.5 450 ma4st250 mavr-000250-xxxxxx 2.3 2.7 3.5 1.8 3.5 450 c t 4 ls cp cj rs package parasitics parasitics: cp= 0.15 pf ls= 0.1 nh intrinsic diode model: n = 1.1 cj0=(see table below) vj = (see table below) fc = 0.5 bv = 12.0 v m = (see table below) spice model specifications are subject to change without prior notification
3 low-voltage / high q si hyperabrupt varactors rev. v5 ma4st200 series ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. typical performance curves specifications are subject to change without prior notification
4 low-voltage / high q si hyperabrupt varactors rev. v5 ma4st200 series ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. case styles sc-70, 3 lead (case style 1146) inches millimeters dim. min. max. min. max. a 0.071 0.087 1.80 2.21 b 0.045 0.053 1.14 1.35 c 0.071 0.094 1.80 2.39 d 0.047 0.057 1.19 1.45 e 0.010 0.016 0.25 0.41 f 0.031 0.039 0.79 1.00 g 0.000 0.004 0.00 0.10 h 0.004 0.10 j 0.004 0.10 0.007 0.010 0.18 0.25 sod-323 (case style 1141) inches millimeters dim. min. max. min. max. a ? 0.043 ? 1.1 b ? 0.004 ? 0.1 c ? 0.008 ? 0.2 d 0.010 0.016 0.25 0.41 e 0.003 0.006 0.07 0.15 f 0.063 0.075 1.6 1.9 g 0.045 0.057 1.14 1.45 h 0.091 0.106 2.3 2.7 f d h g c e a b a e d j h g f 10 max. c b specifications subject to c hange without prior notification sc-79 (case style 1279) inches millimeters dim. min. max. min. max. a .0197 .0276 0.50 0.70 b 0.003 0.008 0.07 0.20 c 0.006 0.010 0.15 0.25 d 0.010 0.014 0.25 0.35 e 0.059 0.067 1.50 1.70 f 0.043 0.051 1.09 1.30 g .0098 nominal 0.250 nominal h .0433 nominal i .027 .035 0.68 0.89 1.10 nominal
5 low-voltage / high q si hyperabrupt varactors rev. v5 ma4st200 series ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.4155721 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. mounting information the illustration indicates the recommended mounting pad configuration for the sc-79, sc70 3ld and sod-323 packages. solder paste containing flux should be screened onto the pads to a thickness of 0.005- 0.007 inches. the plastic package is placed in position, firmly adhering to the solder paste. permanent attachment is performed by a reflow soldering procedure during which the tab temperature does not ex ceed +275 c and the body temperature does not exceed +250 c, for standard models and +260 c for the rohs compliant devices. these varactors are available in the three case styles shown. when ordering, specify the desired case style by adding the case designation (287 for sot-23, 1146 for sc70 3ld, 1141 for sod-323) as a suffix to the model number. for example, ma4st230-1141 specifies the ma4st230 varactor in the sod-323 package. the model number indicated is for a single varactor. common cathode pairs are available in sot-23 package, and are specified by adding ?ck? to the end of the model number. for example ma4st230ck-287 specifies the ma4st230 varactor in common cathode pairs. for rohs compliant parts, use the following suffices for the given package style ( after the base p/n ) : sc-79 : 12790t sod-323 : 11410t sc70 3ld : 1146ft as example, the rohs p/ n for the base p/n mavr- 000230 in sod-323 is : mavr-000230-1146ft. please refer to application note m538 for surface mounting instructions. sc-70, 3 lead (case style 1146) 0.030 0.80 0.030 0.80 0.030 0.80 0.075 1.9 0.030 0.80 inches mm dimenstions: sod-323 (case style 1141) 0.030 0.80 .090 2.2 0.030 0.80 inches mm dimenstions: 0.030 0.80 sc-79 (case style 1279) 0.020 0.50 0.053 1.35 inches mm dimenstions: 0.020 0.50 specifications are subject to change without prior notification
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